File Exchange

image thumbnail

Automated Prescription Lens Calculator

version 1.0.1 (64 KB) by Tian Chin Liew
This project presented a Diopter computation method through distance estimation using color segmentation and triangle similarities.

1 Download

Updated 14 Jul 2018

View License

The aim of this project is to develop a vision solution to perform simple and highly accurate eye examination for myopia patient. Automated Prescription Lens Calculator introduced a new real-time method to estimate the level of myopia (measured in Diopter1) relative to the ability a person to see a reference object clearly. The concept behind it is distance estimation using triangle similarities.

A continuous image streams is captured and preprocessed to look for desired reference object. Applying image segmentation, blob analysis, and pixel operation, together with the intrinsic parameters of camera devices, a highly accurate Diopter value is computed. Under controlled environment, we achieved up to 98% accuracy in Diopter value estimation.

Cite As

Tian Chin Liew (2020). Automated Prescription Lens Calculator (https://www.mathworks.com/matlabcentral/fileexchange/68193-automated-prescription-lens-calculator), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (0)

Updates

1.0.1

Refer to the link to download the project files

MATLAB Release Compatibility
Created with R2017b
Compatible with any release
Platform Compatibility
Windows macOS Linux